Description

Ammonium phosphate monobasic (NH4H2PO4) is a high-purity, water-soluble inorganic salt that serves as a critical source of both nitrogen and phosphorus. This compound is essential for applications requiring precise nutrient delivery and controlled pH environments. It is a fundamental raw material for manufacturers in the fertilizer, food & beverage, and industrial chemical sectors seeking reliable, consistent quality.

Application

• Fertilizer Production: A primary ingredient in water-soluble and high-efficiency NPK fertilizers, providing readily available nitrogen and phosphorus for plant growth.
• Food & Beverage Industry: Used as a nutrient and pH control agent in yeast cultivation for baking and brewing, and as a mineral supplement in food fortification.
• Flame Retardants: Acts as an effective intumescent flame retardant in materials such as textiles, wood, and paper products.
• Water Treatment: Employed as a corrosion inhibitor and scale prevention agent in industrial water treatment and boiler water systems.
• Laboratory & Analytical Reagent: Serves as a buffer component in analytical chemistry and biological research to maintain stable pH levels.
• Metal Surface Treatment: Used in metal finishing processes for cleaning, phosphating, and providing corrosion-resistant coatings.

Basic Information

Product Name	Ammonium Phosphate Monobasic
CAS No.	7722-76-1
Molecular Formula	NH4H2PO4
Molecular Weight	115.03 g/mol
Synonyms	Monoammonium phosphate (MAP); Ammonium dihydrogen phosphate; Primary ammonium phosphate; Ammonium biphosphate; ADP (Ammonium dihydrogen phosphate); Phosphoric acid, monoammonium salt; 1-Ammonium-2-phosphate
EINECS	231-764-5

Quality Control

Our Ammonium Phosphate Monobasic is manufactured under a strict quality management system. We offer various grades, including Technical, Food (FCC), and Analytical Reagent grades, each produced to meet precise specifications. Every batch is tested for key parameters such as assay, heavy metal content, and loss on drying. Certificates of Analysis (COA) are provided to ensure traceability and compliance with your requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent caking and degradation due to absorption of atmospheric moisture. Keep away from incompatible materials such as strong bases.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (NH4H2PO4)	≥ 98.0 %
pH (5% solution)	3.8 - 4.5
Loss on Drying	≤ 0.5 %
Water Insoluble Matter	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 50 ppm
Sulfate (SO4)	≤ 100 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.